In Dutch oven brown beef strips in hot oil over medium-high heat. Add beef broth and peanut sauce; bring to boiling.
Stir in noodles; reduce heat. Simmer, uncovered, 4 minutes, stirring occasionally to separate noodles. Add broccoli; return to boiling. Reduce heat. Simmer, uncovered, for 3 to 4 minutes more or just until noodles are tender, stirring occasionally.
Divide beef and noodle mixture among four bowls. If desired, sprinkle servings with green onions. Serves 4.